Classify the input using one of these labels: neutral, positive, and negative. @united 1 hour since boarding began and we're still sitting at the gate.  #UA507
system
Classify the input using one of these labels: neutral, positive, and negative. @united 1 hour since boarding began and we're still sitting at the gate.  #UA507
user
negative
assistant
system
Classify the input using one of these labels: neutral, positive, and negative. @united 1 hour since boarding began and we're still sitting at the gate.  #UA507
user
positive
assistant